Page 529 of 1839

DIESEL FUEL <4M4> -Troubleshooting13C-38
Item
No.Reference
page Code No.
or inspec-
tion proce-
dure No. Value to be determined
as normal Inspection
conditions Drive Con-
tents Check item
25GE actuatorTurn the GE
actuator to
ONDIgnition
switch: ON
DEngine
speed:
0 r/min orMakes an audible
soundCode
No.4813C-21
26Turn the GE
actuator to
OFF
0 r/min or
lower
DControl
sleeve posi-
tion sensor:
Normal
27Fuel cut solenoid
valveTurn the
solenoid
valve to ONDIgnition
switch: ON
DVehicle
speed:
0 km/hMakes an audible
sound––
28EGR solenoid
valve No.1Turn the
solenoid
valve to ONDIgnition
switch: ON
DVehicleMakes an audible
sound––
29Turn the
solenoid
valve to ONspeed:
0 km/h
30EGR solenoid
valve No.2Turn the
solenoid
valve from
OFF to ON or
from ON to
OFFDIgnition
switch: ON
DVehicle
speed:
0 km/hMakes an audible
sound––
33PTC heaterSwitch the
PTC heater
relay ON/
OFF.DIgnition
switch: ONVoltage on the ECU
terminal No.9: 0 - 1V––
34Middle position
of GE actuatorHold the
injection
governor in
its middle
position.DIgnition
switch: ONWhen the crankshaft
is turned clockwise
during the adjustment
of the injection timing,
the injection pipes
spray out fuel.Code
No.4813C-21
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Page 530 of 1839

C
heck it e m I
n sp ectio n co ndit io ns (e ngin e sta tu s) N
orm alco ndit io n: 1 G
E actu ato r I
g nit io n sw it c h : O N (E ngin e sto ps) 9
V or hig her 2 F
uelc u tso le noid va lv e I
g nit io n sw it c h : O FF ® ST 0
-1 V E
ngin e: Id lin g ® Sto p (in about 1 se co nd) S
yste m vo lt a ge 3 T
im in g co ntr o lva lv e I
g nit io n sw it c h : O N (E ngin e sto ps) 1
1 V or hig her 4 G
lo w la m p 0
-1 V (In about 1
s e co nd: at 20_C ) ®
S yste m vo lt a ge 5 E
G R co ntr o l so le noid I
g nit io n sw it c h : O FF ® ON S
yste m vo lt a ge v
a lv e No. 2 E
ngin e: Afte r warm in g up th e engin e, co nduct
s u dden ra cin g fr o m id lin g. D
ecre ase d mom enta rily 7 C
ondense r fa n re la y C
ondense r fa n in opera tio n 0
-1 V 8 E
ngin e warn in g la m p I
g nit io n sw it c h : O FF ® ON 0
-1 V (In fe w se co nds)
® Syste m vo lt a ge 9 P
TC heate r re la y H
eatin g sw it c h :O N,o uts id e te m pera tu re at1 0_C or
l o w er, a nd th e engin e co ola ntte m pera tu re at6 5_C
o r lo w er 0
-1 V 1
4 M
ain th ro ttle so le noid I
g nit io n sw it c h : O N (E ngin e sto ps) S
yste m vo lt a ge v
a lv e E
ngin e: Afte r warm in g up th e engin e, co nduct
s u dden ra cin g fr o m id lin g. 0
-1 V 1
6 G
lo w plu g re la y S
yste m vo lt a ge (In about
8 se co nds: a t2 0_C )® 0
- 1 V 1
8 S
ub th ro ttle so le noid E
ngin e: Id lin g S
yste m vo lt a ge v
a lv e E
ngin e: Id lin g ® Sto p (w it h in appro x. 3 se co nds) 0
-1 V 2
1 A
/C re la y A
/C sw it c h :O N 0
-1 V 3
1 I
d le sw it c h I
g nit io n sw it c h : O N R
ele ase th e fo ot fr o m th e
a cce le ra to r pedal. 0
-1 V S
te p on th e acce le ra to r
p edalslig htly 4
V or hig her 3
2 A
/C sw it c h A
/C in opera tio n (c o m pre sso r in opera tio n) S
yste m vo lt a ge 3
5 P
ow er ste erin g flu id
p re ssu re sw it c h E
ngin e: Id lin g afte r
w arm in g up th e en-
g in e W
hen tu rn in g ste erin g
w heel 0
-1 V
Page 531 of 1839

DIESEL FUEL <4M4> -Troubleshooting13C-40
Terminal
No.Normal condition: Inspection conditions (engine status) Check item
36Selector switch be-
tween A/T and M/TIgnition switch: ON0-1V
37Inhibitor switchIgnition switch: ON
(Engine stops)Set the selector lever to P
or N0-1V
Set the selector lever to D,
2, L, or RSystem voltage
39Stop lamp switchDepress the brake pedalSystem voltage
40Brake switchDepress the brake pedal0-1V
46Control relayIgnition switch: ON0-1V
Ignition switch: ON®OFF (in about 8 seconds)System voltage
51Engine speed sensor
(backup)Engine: Idling1.5 - 2.5 V
55Accelerator pedal posi-
tion sensor (sub)Ignition switch: ONAccelerator pedal: Idling
position0.9 - 1.1 V
Accelerator pedal: Fully
opened position4.1 V or higher
71Ignition switch-STEngine: Cranking8 V or higher
74Control sleeve positionIgnition switch: ON (Engine stops)2.2 - 2.7 V
73sensor2.0 - 4.0 V
752.0 - 4.0 V
76Timer piston positionIgnition switch: ON (Engine stops)2.2 - 2.7 V
77sensor2.0 - 4.0 V
782.0 - 4.0 V
80Back-up power supplyIgnition switch: OFFSystem voltage
82Ignition switch-IGIgnition switch: ONSystem voltage
83Engine coolant tem-
perature sensorIgnition switch: ONEngine coolant tempera-
ture: 0_C3.4 - 4.5 V
Engine coolant tempera-
ture: 20_C2.6 - 3.6 V
Engine coolant tempera-
ture: 40_C1.8 - 2.5 V
Engine coolant tempera-
ture: 80_C0.7 - 1.1 V
84Accelerator pedal posi-
tion sensor (main)Ignition switch: ONAccelerator pedal: Idling
position0.9 - 1.1 V
Accelerator pedal: Fully
opened position4.1 V or higher
85Boost pressure sensorIgnition switch: ON (760 mmHg)1.2 - 1.6 V
86Vehicle speed sensorDIgnition switch: ON
DMove the vehicle forward slowly0V«5 V (repeat the
change)
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Page 532 of 1839
DIESEL FUEL <4M4> -Troubleshooting13C-41
Terminal
No.Normal condition: Inspection conditions (engine status) Check item
87Fuel temperature sen-Ignition switch: ONFuel temperature: 0_C3.2 - 3.6 V
sorFuel temperature: 20_C2.3 - 2.7 V
Fuel temperature: 40_C1.4 - 1.8 V
Fuel temperature: 80_C0.4 - 0.8 V
88Boost air temperature
sensorIgnition switch: ONIntake air temperature:
0_C3.2 - 3.8 V
Intake air temperature:
20_C2.3 - 2.9 V
Intake air temperature:
40_C1.5 - 2.1 V
Intake air temperature:
80_C0.4 - 1.0 V
89Engine speed sensorEngine: Idling1.5 - 2.5 V
91Neutral switchIgnition switch: ON
(Engine stops)Set the selector lever to P
or N0-1V
Set the selector lever to D,
2, L, or RSystem voltage
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Page 533 of 1839

O
N-V EH IC LE SER VIC E
I N JE C TIO N TIM IN G CHEC K AND
A DJU STM EN T
R efe r to GRO UP 11 C -Engin e Adju stm ent.
I D LE SPEED CHEC K AND ADJU STM EN T
R efe r to GRO UP 11 C -Engin e Adju stm ent.
A CCELE R ATO R PED AL PO SIT IO N SEN SO R
( A PS) ADJU STM EN T
C au tio n
( 1 ) APS is pro perly ad ju ste d in th e fa cto ry . There fo re ,
A PS sh ould not be moved care le ssly .
( 2 ) If th e ad ju stm en t is not done co rre ctly , carry out
a new ad ju stm en t in th e fo llo w in g pro ced ure :
1 . Rem ove acce le ra to r pedal co m ple te .
2 . Connect M UT-I I to th e dia gnosis co nnecto r. If M UT-I I
i s not use d, th e fo llo w in g opera tio n sh ould be done:
( 1 ) Dis co nnect APS co nnecto r and co nnect th e sp ecia l
t o ol (te st harn ess: MB991658) betw een tw o
c o nnecto rs .
( B e ca re fu l not to ta ke a wro ng te rm in al N o.)
( 2 ) Connect a dig it a l vo lt m ete r betw een APS co nnecto r
t e rm in alN o.3 (A PS1 outp ut) a nd te rm in alN o.1 (A PS1
e arth ).
3 . Loose n th e APS mountin g bolt to make it te m pora rily
t ig hte ned.
4 . Ensu re th atth e acce le ra to rp edala rm co nta cts th e clo sin g
s to pper.
5 . Use th e adju stin g scre w to make th e cle ara nce A (s h ow n
i n th e illu str a tio n) betw een 0.5 and 0.9 3 mm.
6 . Secu re th e adju stin g scre w wit h th e lo ck nut.
7 . Turn on th e ig nit io n sw it c h . (E ngin e does not sta rt.)
8 . Turn APS to make APS1 outp ut th e sta ndard va lu e.
S ta n dard valu e: 0.9 85 -1.0 85 V
9 . Tig hte n th e APS mountin g bolt se cu re ly .
1 0. In sta ll th e acce le ra to r pedal co m ple te . C
onnecto r atth e
e quip m ent A
cce le ra to r
p edal A
PS M
B991658 A
cce le ra to r
p edala rm F
ully clo se d
s to pper A
dju stin g scre w A
PS C
le ara nce A w
ww.W ork sh opM an uals .c o .u k
P urc h ased f r o m w ww.W ork sh opM an uals .c o .u k
Page 534 of 1839
T
e rm in alN o. 1 2 3 4
W
hen no cu rre nt is
s u pplie d W
hen cu rre nt is
s u pplie d R
esis ta nce sm ooth ly
c h anges in pro portio n to th e
t r a ve l of th e acce le ra to r
p edal. C
ontr o lre la y A
PS C
onnecto r atth e
e quip m ent A
cce le ra to r
p edal C
onnecto r atth e
e quip m ent A
cce le ra to r
p edal A
PS
w
ww.W ork sh opM an uals .c o .u k
P urc h ased f r o m w ww.W ork sh opM an uals .c o .u k
Page 535 of 1839
C
ontin uit y S
te p on N
one R
ele ase Y
es R
esis ta nce va lu e (k W
) R
is in g B
eco m e sm alle r B
oost a ir te m pera tu re
s e nso r E
ngin e co ola nt
t e m pera tu re
s e nso r w
ww.W ork sh opM an uals .c o .u k
P urc h ased f r o m w ww.W ork sh opM an uals .c o .u k
Page 536 of 1839
W
ate r le ve lse nso r H
and pum p A
ir plu g w
ww.W ork sh opM an uals .c o .u k
P urc h ased f r o m w ww.W ork sh opM an uals .c o .u k